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» Approximate Range Mode and Range Median Queries
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STACS
2005
Springer
13 years 10 months ago
Approximate Range Mode and Range Median Queries
Abstract. We consider data structures and algorithms for preprocessing a labelled list of length n so that, for any given indices i and j we can answer queries of the form: What is...
Prosenjit Bose, Evangelos Kranakis, Pat Morin, Yih...
ISAAC
2003
Springer
93views Algorithms» more  ISAAC 2003»
13 years 10 months ago
Range Mode and Range Median Queries on Lists and Trees
We consider algorithms for preprocessing labelled lists and trees so that, for any two nodes u and v we can answer queries of the form: What is the mode or median label in the sequ...
Danny Krizanc, Pat Morin, Michiel H. M. Smid
ICALP
2010
Springer
13 years 9 months ago
Cell Probe Lower Bounds and Approximations for Range Mode
The mode of a multiset of labels, is a label that occurs at least as often as any other label. The input to the range mode problem is an array A of size n. A range query [i, j] mus...
Mark Greve, Allan Grønlund Jørgensen...
MICS
2010
137views more  MICS 2010»
13 years 3 months ago
Finding Range Minima in the Middle: Approximations and Applications
Abstract. A Range Minimum Query asks for the position of a minimal element between two specified array-indices. We consider a natural extension of this, where our further constrai...
Johannes Fischer, Volker Heun
COMPGEOM
2004
ACM
13 years 10 months ago
Deterministic sampling and range counting in geometric data streams
We present memory-efficient deterministic algorithms for constructing -nets and -approximations of streams of geometric data. Unlike probabilistic approaches, these deterministic...
Amitabha Bagchi, Amitabh Chaudhary, David Eppstein...